<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jquery 表单校验</title>
</head>
<body>
    <form class="cmxform" id="signupForm" method="get" action="">
        <fieldset>
            <legend>验证完整的表单</legend>
            <p>
                <label for="firstname">名字</label>
                <input id="firstname" name="firstname" type="text">
            </p>
            <p>
                <label for="lastname">姓氏</label>
                <input id="lastname" name="lastname" type="text">
            </p>
            <p>
                <label for="username">用户名</label>
                <input id="username" name="username" type="text">
            </p>
            <p>
                <label for="password">密码</label>
                <input id="password" name="password" type="password">
            </p>
            <p>
                <label for="confirm_password">验证密码</label>
                <input id="confirm_password" name="confirm_password" type="password">
            </p>
            <p>
                <label for="email">Email</label>
                <input id="email" name="email" type="email">
            </p>
            <p>
                <label for="agree">请同意我们的声明</label>
                <input type="checkbox" class="checkbox" id="agree" name="agree">
            </p>
            <p>
                <label for="newsletter">我乐意接收新信息</label>
                <input type="checkbox" class="checkbox" id="newsletter" name="newsletter">
            </p>
            <fieldset id="newsletter_topics">
                <legend>主题 (至少选择两个) - 注意：如果没有勾选“我乐意接收新信息”以下选项会隐藏，但我们这里作为演示让它可见</legend>
                <label for="topic_marketflash">
                    <input type="checkbox" id="topic_marketflash" value="marketflash" name="topic">Marketflash
                </label>
                <label for="topic_fuzz">
                    <input type="checkbox" id="topic_fuzz" value="fuzz" name="topic">Latest fuzz
                </label>
                <label for="topic_digester">
                    <input type="checkbox" id="topic_digester" value="digester" name="topic">Mailing list digester
                </label>
                <label for="topic" class="error">Please select at least two topics you'd like to receive.</label>
            </fieldset>
            <p>
                <input class="submit" type="submit" value="提交">
            </p>
        </fieldset>
    </form>
    <script src="./jquery.1.8.3.js"></script>
    <script src="./jquery.validate/messages_zh.js"></script>
    <script src="./jquery.validate/jquery.validate.min.js"></script>
    <script>
        $().ready(function () {
            // 在键盘按下并释放及提交后验证提交表单
            $("#signupForm").validate({
                rules: {
                    firstname: "required",
                    lastname: "required",
                    username: {
                        required: true,
                        minlength: 2
                    },
                    password: {
                        required: true,
                        minlength: 5
                    },
                    confirm_password: {
                        required: true,
                        minlength: 5,
                        equalTo: "#password"
                    },
                    email: {
                        required: true,
                        email: true
                    },
                    topic: {
                        required: "#newsletter:checked",
                        minlength: 2
                    },
                    agree: "required"
                },
                messages: {
                    firstname: "请输入您的名字",
                    lastname: "请输入您的姓氏",
                    username: {
                        required: "请输入用户名",
                        minlength: "用户名必需由两个字符组成"
                    },
                    password: {
                        required: "请输入密码",
                        minlength: "密码长度不能小于 5 个字符"
                    },
                    confirm_password: {
                        required: "请输入密码",
                        minlength: "密码长度不能小于 5 个字符",
                        equalTo: "两次密码输入不一致"
                    },
                    email: "请输入一个正确的邮箱",
                    agree: "请接受我们的声明",
                    topic: "请选择两个主题"
                }
            })
        });
    </script>
</body>
</html>